Question

A person travels x distance with velocity v₁ and then x distance with velocity v₂ in the same direction. The average velocity of the person is v, then the relation between v, v₁ and v₂ will be

(1) v = v₁ + v₂

(2) \(v=\frac{v_1+v_2}{2}\)

(3) \(\frac{2}{v}=\frac{1}{v_1}+\frac{1}{v_2}\)

(4) \(\frac{1}{v}=\frac{1}{v_1}+\frac{1}{v_2}\)

Answer 1

(3) \(\frac{2}{v}=\frac{1}{v_1}+\frac{1}{v_2}\)

Average velocity